I just bought a Miami Hurricane chalice frag and dipped it in iodine for less than a minute. I then put it in the tank and it began to shed mucus and then it turned black, you can see some of the mucus in the picture?!?!?! Is this normal?

DSCF1230 - Oh no!

DSCF1232 - Oh no!

DSCF1236 - Oh no!